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For the Inventor, By the Inventor

Wakayama, Japan

Takashi Yamaguchi

This inventor holds 15 USPTO granted patents, primarily in Electrophotography Materials. Top assignees: Kao Corporation, Hitachi, Ltd., Kabushiki Kaisha Yamamoto Suiatsu Kogyosho. Active years: 1977-2009.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takashi Yamaguchi. Retrieved from https://idiyas.com/inventor/takashi-yamaguchi-upwiok28

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank
USPTO Granted Patents = 15

% Patents Active = 100.0

Average Co-Inventor Count = 3.5

ph-index = 6

Forward Citations = 73(Granted Patents)


Location History:

  • Kodaira, JA (1977)
  • Wakayama, JA (1978)
  • Arida, JP (1996)
  • Wakayami, JP (2001)
  • Wakayama, JP (1979 - 2009)

Company Filing History:

goldMedal10 out of 3,680 
 
Kao Corporation
 patents
silverMedal2 out of 42,743 
 
Hitachi, Ltd.
 patents
bronzeMedal2 out of 3 
 
Kabushiki Kaisha Yamamoto Suiatsu Kogyosho
 patents
4. 2 out of 2 
 
Nihon Valqua Kogyo Kabushiki Kaisha
 patents
5. 2 out of 22 
 
Sumitomo Kinzoku Kogyo Kabushiki Kaisha
 patents
6. 2 out of 929 
 
Sumitomo Metal Industries, Inc.
 patents
7. 1 out of 1,258 
 
Sumitomo Heavy Industries, Ltd.
 patents
where one patent can have more than one assignee

Years Active: 1977-2009

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Areas of Expertise:
Electrophotography
Toner
Molding Composition
Crystalline Polyester
Heat-and-Pressure Fixing
Integrated Circuits
Cylindrical Steel Articles
Steel-Pipe Testing
15 patents (USPTO):Explore Patents
1. 7625684 - Toner for electrophotography (2009-12-01),
2. 6767971 - Molding composition (2004-07-27),
3. 6710106 - Molding composition (2004-03-23),
4. 6653435 - Nonlinear crystalline polyester (2003-11-25),
5. 6339115 - Molding composition (2002-01-15),
6. 6300387 - Molding composition (2001-10-09),
7. 5750304 - Encapsulated toner for heat-and-pressure fixing and method for producing (1998-05-12),
8. 5571652 - Encapsulated toner for heat-and-pressure fixing and method for producing (1996-11-05),
9. 5567567 - Method for producing encapsulated toner for heat-and-pressure fixing and (1996-10-22),
10. 5536612 - Encapsulated toner for heat-and-pressure fixing and method for (1996-07-16),
11. 4619310 - Supporting and guiding apparatus continuous rounds casting (1986-10-28),
12. 4149731 - Packing for use in steel-pipe hydraulic testing apparatus (1979-04-17),
13. 4088213 - Apparatus for transporting cylindrical steel articles (1978-05-09),
14. 4085942 - Packing for use in steel-pipe hydraulic testing apparatus (1978-04-25),
15. 4014718 - Method of making integrated circuits free from the formation of a (1977-03-29),

Title: Inventor Takashi Yamaguchi

Introduction: Takashi Yamaguchi is a renowned inventor based in Wakayama, Japan, known for his groundbreaking contributions to various fields.

Latest Patents: Takashi Yamaguchi holds several patents in the areas of robotics, artificial intelligence, and sustainable energy solutions.

Career Highlights: With over two decades of experience in the innovation industry, Takashi Yamaguchi has led numerous successful projects that have revolutionized the way we approach technology.

Collaborations: Throughout his career, Takashi Yamaguchi has collaborated with leading research institutions, universities, and tech companies to bring his inventions to life and make a positive impact on society.

Conclusion: Takashi Yamaguchi's dedication to innovation and his passion for creating a better future through technology make him a truly inspiring figure in the world of inventors.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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